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Long Term Debt (Long Term Maturities) (Details) $ in Millions | Dec. 31, 2018 CAD ($)
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Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | $ 1,119
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 898
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 1,742
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 758
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 1,138
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 9,847
Total debt maturities including current portion | 15,502
Emera Inc |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 225
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 339
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 500
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 1,637
Total debt maturities including current portion | 2,701
Emera US Finance LP [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 682
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 1,023
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 2,729
Total debt maturities including current portion | 4,434
TECO Finance, Inc. [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 409
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 0
Total debt maturities including current portion | 409
Emera Maine [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 41
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 123
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 28
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 286
Total debt maturities including current portion | 478
Nova Scotia Power Inc. [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 95
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 516
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 1,965
Total debt maturities including current portion | 2,576
EBP [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 248
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 0
Total debt maturities including current portion | 248
Grand Bahama Power Company Limited [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 17
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 50
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 37
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 33
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 45
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 0
Total debt maturities including current portion | 182
The Barbados Light and Power Company Limited [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 31
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 59
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 30
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 13
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 25
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 100
Total debt maturities including current portion | 258
Tampa Electric Division [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 315
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 307
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 2,504
Total debt maturities including current portion | 3,126
New Mexico Gas Company [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 273
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 95
Total debt maturities including current portion | 368
Peoples Gas System Division [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 64
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 34
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 327
Total debt maturities including current portion | 425
New Mexico Gas Incorporate [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 69
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 204
Total debt maturities including current portion | 273
Icd Utilities Limited [Member] |
Debt Instrument [Line Items] |
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2019 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2020 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2021 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2022 | 0
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in 2023 | 24
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter | 0
Total debt maturities including current portion | $ 24

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